There's one on ebay just now but was for a Rover so has Rover sticker on it rather than Defender. I'll maybe wait for the real thing.

Robert

I was about to say get the Rover one and change the faceplate - then I guessed maybe its not a case of yours being broken - but missing - in which case I would get the rover one anyway and wait for a broken LR one. They were used in Discovery ES as well IIRC so I am surprised that they are so hard to get hold of. On my old one the screen failed - and the buttons were not very reliable thats why I replaced it.